package lab02.test32;

import java.util.HashMap;
import java.util.Map;

public class Test32 {
    public static void main(String[] args) {
        //键－值”对象：id—>"1"、name—>"张三"、gender—>"男"、 age—>"25"、love—>"爱学Java"；
        Map<String, String> map=new HashMap<>();
        map.put("id","1");
        map.put("name","张三");
        map.put("gender","男");
        map.put("age","25");
        map.put("love","爱学Java");

        for (Map.Entry<String,String> entry:map.entrySet()){
            System.out.println(entry.getKey()+":"+entry.getValue());
        }
        System.out.println("集合大小："+map.size());
        System.out.println( "删除元素："+map.remove("age"));
        System.out.println("此时集合大小为："+map.size());
    }
}
